Arroyo Seco Ecosystem Restoration Integrated Feasibility Study€¦ · 29/04/2015 · Microsoft...

OREGON

IDAHO

WYOMING

COLORADO

NEVADA

NEW MEXICO

TEXAS

UTAH

ARIZONA

CALIFORNIA

US Army Corps of Engineers

BUILDING STRONG®And Taking Care Of People!

Arroyo SecoEcosystem RestorationIntegrated Feasibility Study


• Study Overview• Background• Civil Works/SMART Planning Process• Schedule• Preliminary Study Objectives• Measures and Alternatives

• CEQA Overview

Meeting Objectives


Federal – Local Partnership

U.S. Army Corps of EngineersLead Agency

Los Angeles CountyFlood Control District

Lead Local Sponsor


Local Partnerships

Council of ArroyoSeco Agencies


2005Partnershipbetween Corpsand LACFCD

2008PartnershipbetweenLACFCD andlocal agencies

2002Corps completesArroyo SecoWatershedReconnaissanceStudy

2011Corps completes ArroyoSeco WatershedFeasibility ScopingMeeting Documentation(Baseline Conditions)

2013Corps holdsrescoping charetteworkshop

Study Timeline

2017Corps to submitFinal Report

2014Corps holds NEPA PublicScoping Meeting(Start of 3-year Studyperiod)

2012CorpsmodernizesPlanningprocess -SMART


ARROYO SECO ECOSYSTEMRESTORATION FEASIBILITY STUDY


RECONNAISSANCEPHASE

REPORT

FEASIBILITYPHASE

REPORT

FINAL DESIGN

CONSTRUCTIONDOCUMENTS

CONSTRUCTION

PROJECT

OPERATION ANDMAINTENANCE

(BY LOCALSPONSOR)

Civil Works Process

CongressionalAuthorization


6

5

4

3

2

1

In Progress

Six Step Planning Process


SMART Process

RECONNAISSANCEPHASE

REPORT

RECONNAISSANCEPHASE

REPORT

FEASIBILITYPHASE

REPORT

FINAL DESIGN


FINAL DESIGN


CONSTRUCTION

PROJECT

CONSTRUCTION

PROJECT


(BY LOCALSPONSOR)


(BY LOCALSPONSOR)


Milestones Date

Charette November 2013

Review Plan approved August 2014

Alternative Milestone May 2015

Tentatively Selected Plan March 2016

Agency Decision Milestone September 2016

Submit Final Report March 2017

CWRB May 2017

Signed Chief’s Report June 2017

Termination Date August 2017

Study Schedule


• Decision document

• Includes

• Recommended action

• Cost estimate for action

• NEPA and CEQA document

• Leads to request for Congressional authorization forfunding towards design and construction

Integrated Feasibility Study Report


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Those restoration opportunities that are associated withwetlands, riparian and other floodplain and aquaticsystems are most appropriate for Corps involvement.

Ecosystem Restoration Fundamentals


Almost complete loss of stream conditions (structure andfunction) that support aquatic species & their habitats.

Identified Problem


Restore quality and quantity of aquatic, wetlands, andriparian habitats

Restore natural channel sinuosity

Improve Aquatic Habitat

Enhance Recreational Opportunities (compatible withrestoration; passive; example – nature trail, educationalsignage)

Planning Objective and Study Goals


Maintain flood risk management function/capability of existing ArroyoSeco system

Maintain Devil’s Gate Dam flood storage capacity

Avoid Hazardous and Toxic Waste (HTW) site at Jet Propulsion Lab

Minimize impacts to transportation infrastructure such as highwaysand bridges

Minimize adverse impacts to nearby residences, especially historicand culturally significant districts and properties

Minimize impacts to existing facilities and infrastructure such asRose Bowl

Planning Constraints andConsiderations


CHAP evaluation –Combined HabitatAssessment Protocol

Allows comparison ofquality of existinghabitat versusalternatives

Assists in selection ofthe recommendedplan

Habitat Evaluation


Study Location


Arroyo Seco Watershed


StudyReaches


Reach 1


Reach 2


Reach 3


Reach 4


Reach 5


Reach 6


Reach 7


Reach 8


No Action: Under this alternative, the Corps wouldtake no action to restore any ecosystem functions orvalues within the Arroyo Seco study area.

Focused Array of Alternatives(Under Evaluation)


Parallel Natural System: Low-Flow Channel



Parallel Natural System: RCB Culverts with low-flowchannel



Notched Side-Walls with low-flow channel



Floodplain Benching



Sheet-pile Bank Protection with Floodplain Benching



34

California Environmental Quality Act(CEQA)


35

CEQA Environmental Impact Report(EIR) Process


Notice of Preparation (NOP) and scoping meeting

Draft EIR

45-day review and comment period

Public meeting

Public Participation



Draft Study/EIS/EIRDocument• 45 day Public Review

Period• Public Meeting

June – July 2016


Milestones Date

Charette November 2013

Review Plan approved August 2014

Alternative Milestone May 2015



Submit Final Report March 2017

CWRB May 2017

Signed Chief’s Report June 2017

Termination Date August 2017

Schedule



Draft Study/EIS/EIRDocument• 45 day Public Review

Period• Public Meeting

June – July 2016


Schedule


Aesthetics

Agriculture and ForestryResources

Air Quality

Biological Resources

Cultural Resources

Geology & Soils

Greenhouse Gas Emissions

Hazards & HazardousMaterials

Cumulative Impacts

Hydrology & Water Quality

Land Use & Planning

Mineral Resources

Noise

Population & Housing

Public Services

Recreation

Traffic & Transportation

Utilities & Service Systems

Mandatory Findings ofSignificance

Issues to be Analyzed


40

Public ParticipationNOP and Scoping Meeting

NOP can be downloaded here: goo.gl/XEhAKp

Fill out comment response forms

Limit oral comments to three minutes


County of Los Angeles Department of Public Works

Watershed Management Division, 11th Floor

Attention: Mr. Patrick Goodfellow

900 South Fremont Avenue

Alhambra, CA 91803

or by email to: [email protected]

Submit comments by May 23, 2015

Public ParticipationWritten Comments


Questions

U.S. ArmyCorps of Engineers

Los Angeles CountyFlood Control District

Priyanka Wadhawan915 Wilshire Blvd, Suite 980Los Angeles, CA 90017(213) [email protected]

Patrick Goodfellow900 S. Fremont AvenueAlhambra, CA 91803(626) [email protected]

For more information on the Study:

Arroyo Seco Ecosystem Restoration Integrated Feasibility Study€¦ · 29/04/2015 · Microsoft...

Documents

Transcript of Arroyo Seco Ecosystem Restoration Integrated Feasibility Study€¦ · 29/04/2015 · Microsoft...